Iron heater



(No Model.)

W. MELLOR.

SOLDERING IRON HEATER. No. 370,562. Patented Sept. 27, 1887.

WITNESSES ATTORNEYIS.

N. PETERS. Phatn-Lilhn m har. Washington, D.

UNITED STATES PATENT OFFICE.

\VILLIAM MELLOB, OF NEW YORK, N. Y.

SOLDERING-IRON HEATER.

QPECIPICATION forming part of Letters Patent No. 370,552, datedSeptember 27, 1887.

Application filed January 13, 1887. Serial K0522426 1. (No model.)

To all whom it may concern):

7 Be it known that I, WILLIAM MELLOR, of the city, county, and State ofNew York, have invented a new and Improved Solderinglron Heater, ofwhich the following is a full, clear, and exact description.

My invention has for its object to furnish for the use of plumbers,roofers, and others an improved furnace which is easily adaptable formelting solder or for heating solderingirons, the radiation of heat, andhence danger of fire, from which is almost entirely obviated, and whichis exceedingly convenient in use and simple in construction.

The invention consists in the construction, combination,and arrangementof various parts of the furnace, as hereinafter fully described, andparticularly pointed out in the claims.

Reference is to be had to the accompanying drawings, forming apart ofthis specification,in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is an elevation of my improved plumbers furnace. Fig. 2 is asectional elevation of the body of the same. Fig. 3 is a plan view withthe cover removed. Fig. 4 is a detail perspective view partly insection.

B designates the downwardly-tapering side wall of the furnace-body, andB the bottom thereof, attached to the side wall, B, in any suitablemanner.

On the bottom of the furnacebody is placed a thick layer, E, of powderedshell-lime or a similar heat-resisting material, which is retained inplace by an upwardly-concaved plate, D, fitting closely in the furnacebody, and which also forms the fire-pot when the furnace is used forheating soldering-irons. A headed bolt, G, is passed centrally downwardthrough the plate D, layer E, and bottom B, and also through a tubularspacing-piece, H, and a. circular plate or shield, F, held against thelower end of the same, and on the lower end of the bolt is screwed a nutfor clamping the several parts firmly together. The layer of powderedfilling E is thus held in a tightly-closed chamber formed between thewall of the furnace body, the bottom B, and the plate D, and enables afire to be built with perfect safety in the fire-pot.

About midway of the depth of the furnacebody a series of lugs, O, areriveted or other wise secured to and around the interior of the wall Bthereof, on which a grate, N, rests, as usual. Two diametricallyoppositelugs, P, are likewise secured to the Wall B, just above the grate N,either of which will pass through a notch, Q, formed in the periphery ofthe grate, so that the grate may easily be removed or locked in place byturning it to bring the notch Q into'or out of register, respectively,with either lug P. Abottomless shell, 0, surrounds the furnace-body, isunited to the wall B of the same at the top, as shown, by a close lap orfolded joint, and is secured in place by bolts passed through both thewall and shell. The shell 0 diverges downwardly from the wall B, andextends downward below the bottom Bof the body to or about the plane ofthe circular shield F,which,being about the diameter of the bottom B,leaves an annular opening between its edge and the interior of the shell0. A row of apertures, O, is formed in the shell near the top thereof.An opening is formed in the wall B of the furnace-body at the level ofthe concave plate D, and a corresponding opening in the shell 0, topermit the introduction of the soldering-irons into the firepot, formedby said plate D. The narrow open space thus left between the wall andshell is closed at the top and sides by a strip formed by bending overthe metal of either the wall or shell, and at the bottom by the innerpart of the inclined bottom of the guard M. This guard projects outwardand upward, and its sides are bent upward and flanged to receive therivets by which they are attached to the shell 0, as shown most clearlyin Fig. 1.

The opening in the shell, and hence in the wall B, can be regulated by adoor, K, sliding vertically on the outside of the shell in guides L,secured at the sides of the opening in the same.

The open top of the furnace-body can be closed by a cover carrying anordinary chimney, U, and damper W, and having attached thereto at itsrear edge a projecting plate, S, apertured to receive anupwardly-projecting pin, T, soldered or fastened to the top of the outershell, 0. The cover can thus be wholly removed or swung to one side atwill.

With this construction of furnace the grate N can be readily removed anda fire of coke or charcoal built in the fire-pot formed by the plate D,for heating the irons, or the grate replaced and a fire built thereonfor melting pots of solder, the bottom plate, D, then forming theash-pit. In either case the draft may be easily regulated by the slidingdoor K or the damper W in the chimney U, andif while melting solder anyof the same should be spilled the peculiarly-constructed fire-pot andguard M would prevent its escaping and doing damage.

Through the space left between the bodywall B and the shell an upwardcurrent of air is constantly passing, the cold air entering the annularopening between the shield F and shell 0, circulating between saidshield and the bottom of the furnacebody and the shell and the wall B,becoming heated and escaping by the top apertures, O. This upwardcurrent is uninterrupted by the air-supply entering the side opening, asthe same is entirely cutoff from the annular air-space by theconstruction described. All dangerous radiation of heat from the walland bottom of the furnace-body is thus effectually prevented.

Having thus described my invention, whatI claim as new, and desire tosecure by Letters Patent, is

1. The combination, in a furnace of the class described, of thefurnace-body having an imperforate bottom, an outer bottomless shell, 0,

united to the wall B of the furnace at the top, diverging downwardlytherefrom and extend ing below the bottom of the furnace-body, a shield,F, supported at a distance below the bottom ofsaid body to leave anopening between its edge and the shell, and escape-apertures in theupper part of the outer shell, whereby a continual circulation of coldair will be maintained around and below the furnace-body and lateralradiation from the bottom of the fire-pot by reflection from the shieldbe prevented as set forth, substantially as shown and described.

2. The combination, in a furnace of the class described, of thefurnace-body, the shell 0, united to the wall B of the same at the topand diverging downwardly therefrom, a firepot in the bottom of saidbody, corresponding openings in the wall 13 thereof and in the shell 0,a'metal strip or piece closing part of the space between the wall andshell at said opening, and a guard, M, closing the remainder of saidspace, projecting outward and upward and having its sides bent upwardand secured to the shell 0, substantially as shown and de scribed.

WILLIAM MELLOR. Witnesses:

O. SEDGWIOK, J. L. MOAULIFFE.

